Efficient way to add Components to Java Swing panel

Question

I have a pre-constructed java panel that has about 30000 labels already added to it. I need to efficiently add this to a scrollpane on my Jframe. However if I call the add method it can take about 30 seconds to add to the scrollpane. Is there another way I can do this more efficiently? I need the UI to update quickly and if I re-add the labels to the panel everytime I need to display them I think this will be more expensive than simply loading the already rendered panel.

Answer 1

I think you should rethink your design. 30000 labels looks like way too much.

Look at JTable or rethink idea if you can't decrease amount of labels.